Anxingo Carburetor Replacement for Troy-Bilt Pony & Briggs & Stratton 15.5–17.5HP 500cc — Direct-Fit 13WM77KS011 42"

This Anxingo replacement carburetor restores fuel delivery for Troy-Bilt Pony riding mowers and compatible Briggs & Stratton 15.5–17.5HP 500cc engines.

If your Troy-Bilt Pony tractor is running rough, stalling, or struggling to start, a worn or clogged carburetor is often the culprit. The Anxingo 13WM77KS011 42" carburetor is manufactured as a direct-fit replacement for several Troy-Bilt part numbers and for select Briggs & Stratton 15.5HP and 17.5HP 500cc engines, giving you an economical way to bring engine performance back to normal.

Which mower models and engine types will this carburetor work with?

This unit is designed to replace specific Troy-Bilt carburetor part numbers and to fit Briggs & Stratton 15.5HP and 17.5HP 500cc engine platforms. Confirming the model and part number on your mower is essential to ensure compatibility before ordering.

• Fits Troy-Bilt part references such as 13WM77KS011, 13AN77KS211, 13WN77KS066, 13AM77KS011, 13AN77TG766, 13AN77KG066
• Compatible with Briggs & Stratton 15.5HP and 17.5HP 500cc engines
• Typical use: Troy-Bilt Pony riding lawn tractors and similar models
• Always check the mower’s model and engine stamp before installation

How difficult is installation and what tools are needed?

The carburetor is intended as a direct replacement, so many mechanically inclined owners can install it with basic hand tools. However, because fuel systems require careful handling, we recommend having a qualified technician perform the install if you’re unsure.

• Common tools: socket set, screwdrivers, pliers, gasket scraper
• Typical steps: drain or clamp fuel line, remove air cleaner, swap carburetor, reconnect linkages
• Gaskets and clamps may need replacement—inspect and replace as necessary
• Professional installation advised if you lack small-engine experience

What performance improvements can I expect after replacing the carburetor?

A properly functioning carburetor restores consistent fuel/air mixture, which helps the engine start reliably, idle smoothly, and respond correctly to throttle. While individual results depend on overall engine condition, replacing a faulty carburetor often resolves stalling, flooding, or poor acceleration issues.

• Smoother idling and fewer stalls during mowing
• Improved cold starts and faster throttle response
• Reduced fuel flooding or rich-running symptoms
• Potentially extended lifespan of the engine if other systems are sound

Are there any important precautions or compatibility checks I should make?

Before purchasing, compare the part number on your original carburetor and verify the mower and engine model numbers match those listed for this replacement. Working with gasoline and fuel lines poses fire and inhalation risks—take standard safety precautions and dispose of old parts and fuel responsibly.

• Confirm original carburetor part number and mower/engine model
• Disconnect battery and work in a well-ventilated area away from sparks
• Replace any worn gaskets, clamps, or fuel lines during installation
• Seek professional help for tuning if the engine still runs poorly after swap

Who is this for? The Anxingo 13WM77KS011 replacement carburetor is aimed at Troy-Bilt Pony owners, small-engine mechanics, and DIY lawn tractor maintainers who need an affordable direct-fit part for Briggs & Stratton 15.5HP–17.5HP 500cc applications. Choose this unit if you want a compatible replacement to restore dependable starting and running—just verify model numbers and consider professional installation if you’re not experienced with fuel-system work.